Mossack Fonseca partner Ramon Fonseca said the company had been hacked by servers based abroad and has filed a complaint with the Panamanian attorney general’s office.

Fonseca served as a minister in Valera’s government but stepped aside earlier this year after separate allegations linked the firm to the corruption scandal engulfing the Brazilian state oil company Petrobras.

The leaked documents were passed to German newspaper Sueddeutsche Zeitung, which then shared them with the International Consortium of Investigative Journalists.

The documents show how the company has helped clients launder money, dodge sanctions and evade tax.

Mossack Fonseca said it has operated beyond reproach for 40 years and never been accused or charged with criminal wrongdoing.